The Democratic Peoples Republic of Korea is risking a major radioactive disaster by continuing to test increasingly powerful nuclear weapons at the Punggye-ri nuclear test site located in the DPRKs North Hamgyong province....

Concerns are growing of a possible leak of radioactive materials on North Koreas nuclear test site in Punggye-ri after its sixth nuclear test there on Sept. 3. Four of the six tests have taken place since Kim Jong-un came to power in December 2011....

South Korea said Wednesday that it is closely monitoring possible radiation traces from North Korea's latest nuclear test, as a post-test tremor occurred due to a collapse in an underground tunnel at the test site....

Kim Jong Un and his regime are believed to have carried out at least five of the countrys nuke tests at the same Punggye-ri test site, prompting a Chinese scientist to warn the next test could collapse the mountain resulting in a massive radiation leak....

A radiation leak at the site of North Koreas massive bomb test is inevitable, a Chinese nuclear weapons expert warned, after authorities in China reported that the mountain where the explosion took place had collapsed....